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var test = require('tap').test
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var chain = require('../').chain
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test('works in simple case', function (t) {
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var state = undefined
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var subject = {
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one: function (arg, cb) {
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t.equal(arg, 'oneArg')
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state = 'oneCall'
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setTimeout(function () {
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cb(null, { state: state, result: 'oneResult' })
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}, 100)
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},
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two: function (arg, cb) {
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t.equal(arg, 'twoArg')
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state = 'twoCall'
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setTimeout(function () {
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cb(null, { state: state, result: 'twoResult' })
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}, 100)
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}
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}
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chain([
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[subject, subject.one, 'oneArg'],
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[subject, subject.two, 'twoArg']
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], function (err, results) {
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t.same(results, [
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{ state: 'oneCall', result: 'oneResult' },
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{ state: 'twoCall', result: 'twoResult' }
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])
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t.end()
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})
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})
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test('skips rest of functions if error occur', function (t) {
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var state = undefined
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var subject = {
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one: function (arg, cb) {
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t.equal(arg, 'oneArg')
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state = 'oneCall'
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setTimeout(function () {
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cb({ state: state, error: 'oneError' })
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}, 100)
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},
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two: function (arg, cb) {
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throw new Error('should be never called')
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}
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}
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chain([
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[subject, subject.one, 'oneArg'],
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[subject, subject.two, 'twoArg']
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], function (err, results) {
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t.same(err, { state: 'oneCall', error: 'oneError' })
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t.end()
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})
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})
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test('skips rest of functions if error occur', function (t) {
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var state = undefined
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var subject = {
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one: function (arg, cb) {
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t.equal(arg, 'oneArg')
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state = 'oneCall'
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setTimeout(function () {
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cb({ state: state, error: 'oneError' })
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}, 100)
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},
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two: function (arg, cb) {
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throw new Error('should be never called')
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}
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}
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chain([
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[subject, subject.one, 'oneArg'],
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[subject, subject.two, 'twoArg']
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], function (err, results) {
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t.same(err, { state: 'oneCall', error: 'oneError' })
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t.end()
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})
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})
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